surgery Clinical Trials
A listing of surgery medical research trials actively recruiting patient volunteers. Search for closest city to find more detailed information on a research study in your area.
Found 2,618 clinical trials
Carotid Artery Corrected Flow Time and Inferior Vena Cava Collapsibility Index for Prediction of Hypotension After Induction of General Anesthesia in Geriatric Patients Undergoing Elective Surgery
In this observational study, we will assess cFT by Carotid ultrasound and IVC collapsibility index for prediction of hypotension after induction of general anesthesia in geriatric patients undergoing elective surgery.
Haemoadsorption During Heart Transplantation
To investigate whether the use of haemoadsorption (HA) on cardiopulmonary bypass during heart transplantation (HTX) has an effect on circulating cytokine levels for the first 120 hours after HTX and induces a decreased inflammatory response, increased anti-inflammatory response or immunosuppressive response. Additionally, the influence of HA on primary graft dysfunction, …
METABolic Deterioration in HTX Determines Outcomes
METAB-HTX is a prospective, longitudinal cohort study evaluating cardiac and systemic metabolism in heart transplant recipients.
Comparative Analgesia and Respiratory Effects of Shoulder Blocks
Interscalene block is widely accepted as the gold-standard regional analgesic technique for pain control after arthroscopic shoulder surgery. However, because this block is performed at the level of the brachial plexus roots, it may be associated with adverse effects such as phrenic nerve blockade and subsequent diaphragmatic dysfunction. These limitations …
Scalp Hair Metabolomics in Severe Obesity
The purpose of this research study is to investigate how body weight and weight-loss surgery affect the natural chemicals found in scalp hair over time. We will also find out how common and severe hair thinning/hair loss and muscle loss are in the first 6 months after bariatric surgery.
The Effects of Regional Anaesthesia Techniques on Hemidiaphragm Paralysis, Postoperative Recovery Quality, Opioid Consumption, and Pain Scores
This study aims to evaluate the effects of ultrasound-guided interscalene, erector spinae plane, costoclavicular, and supraclavicular blocks on hemidiaphragmatic paralysis, postoperative recovery quality, opioid consumption, and pain scores.
Shared Decision Making in Patients With Lung Cancer
The objective of this study is to develop a Decision Aid for Lung Cancer Molecular Testing (DA\_LCMT) and to facilitate shared-decision making in patients who were diagnosed with lung adenocarcinoma by intraoperative frozen pathology about whether to conduct the molecular testing.
Exploratory Study of Clonal Evolution in Cancer for Patients Undergoing Transoral Robotic Surgery for Radiation Exposed Residual/reCurrent Tumours of the Upper Aerodigestive Tract
Radical radiotherapy for head and neck squamous cell cancer (HNSCC) can be administered to primary disease with curative intent. Residual disease, recurrence or further tumours may subsequently occur in this irradiated field. It is unknown whether these cancers reflect primary resistance or represent the evolution of resistance on treatment. Understanding …
Comparing the Outcome of Immunotherapy-Based Drug Combination Therapy With or Without Surgery to Remove the Kidney in Metastatic Kidney Cancer, the PROBE Trial
This phase III trial compares the effect of adding surgery to a standard of care immunotherapy-based drug combination versus a standard of care immunotherapy-based drug combination alone in treating patients with kidney cancer that has spread to other places in the body (metastatic). Immunotherapy with monoclonal antibodies, such as nivolumab, …
Lymphovenous Bypass Procedure Before Underarm Lymph Node Surgery in Preventing Lymphedema in Patients With Inflammatory or Locally Advanced Non-inflammatory Breast Cancer or Melanoma
This pilot trial studies whether a procedure called lymphovenous bypass would prevent lymphedema (arm swelling) in patients with inflammatory breast cancer or non-inflammatory breast cancer that has spread to nearby tissues or lymph nodes or melanoma. The lymphovenous bypass procedure creates a path for lymphatic fluid to flow away from …
